We as user experience practitioners are faced daily with helping users to not only get to the content they want, but recall and share that content with others.
Explain the differences and similarities between different recollection and sharing models and how they impact the user experience of content.
Content used to be about the user going and "getting it", now we rely more and more on content that we can retrieve over and over and content that is not only sent to us based upon what we tell a system to send to us, but what our friends, family and colleagues recommend to us.
* Why we use "Liking", "Favoriting", "Starring" and "Bookmarking"
* What the difference are between these different models and the perception they carry
* How these different models impact what a user will do with your content